Abstract
Excess molar enthalpy data have been measured for the aniline + ethanol and aniline + ethanol + benzene systems at 25°C using an isothermal dilution calorimeter. Experimental results were correlated with polynomial equations and analysed using the uniquac associated-solution model, which assumes self-association for aniline and ethanol, and solvation between unlike molecules. The model can also predict satisfactorily the ternary liquid-liquid equilibria for the systems aniline + ethanol + n-hexane or n-heptane, using binary parameters alone.
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